CVE-2022-42331 Information disclosure in xen

What is CVE-2022-42331?

CVE-2022-42331 is a medium-severity vulnerability in Fedoraproject Fedora, published on 21 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.

Which versions are affected by CVE-2022-42331?

It affects 2 products.

Products include Fedoraproject Fedora, Xen Xen.

How do I fix CVE-2022-42331?

Apply the vendor's patch.

Is CVE-2022-42331 being exploited?

There is no known exploitation of CVE-2022-42331 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-42331, DEBIAN-CVE-2022-42331, GHSA-f5x9-rprw-5rc4, UBUNTU-CVE-2022-42331.